I have installed ceramic tile in my kitchen as a backsplash and after it was grouted I have noticed small pin holes in some of the grout when it dried? I also had a hard time removing the excess grout from tiles when grouting. How long should you let the grout set before trying to remove the excess?
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One should wait for at least 72 hours before removing the excess. Also, do not try to scrap it off, use a sand paper to sand it off so you have better control and you will get a smoother finish.
With regards to the pinholes- since it was done recently, it seems that there was air locked in, and as the air passed out of the sealing, you were left with pinholes.
answered 6 months ago
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